changeset:   100605:691fba640266
user:        Victor Stinner <victor.stinner@gmail.com>
date:        Sat Mar 19 10:33:25 2016 +0100
files:       Doc/whatsnew/3.6.rst
description:
Issue #26567: enhance ResourceWarning example


diff -r 543639cdfdb9 -r 691fba640266 Doc/whatsnew/3.6.rst
--- a/Doc/whatsnew/3.6.rst	Sat Mar 19 10:00:08 2016 +0100
+++ b/Doc/whatsnew/3.6.rst	Sat Mar 19 10:33:25 2016 +0100
@@ -272,24 +272,27 @@
 
 Example with the script ``example.py``::
 
+    import warnings
+
     def func():
-        f = open(__file__)
-        f = None
+        return open(__file__)
 
-    func()
+    f = func()
+    f = None
 
 Output of the command ``python3.6 -Wd -X tracemalloc=5 example.py``::
 
-    example.py:3: ResourceWarning: unclosed file <...>
+    example.py:7: ResourceWarning: unclosed file <_io.TextIOWrapper name='example.py' mode='r' encoding='UTF-8'>
       f = None
     Object allocated at (most recent call first):
-      File "example.py", lineno 2
-        f = open(__file__)
-      File "example.py", lineno 5
-        func()
+      File "example.py", lineno 4
+        return open(__file__)
+      File "example.py", lineno 6
+        f = func()
 
 The "Object allocated at" traceback is new and only displayed if
-:mod:`tracemalloc` is tracing Python memory allocations.
+:mod:`tracemalloc` is tracing Python memory allocations and if the
+:mod:`warnings` was already imported.
 
 
 zipfile